Lamp-burner



(No Model.) v

' D. T. FOX.

LAMP BURNER.

No. 534,870. Patented Feb. 26, 1895.

PATENT Critics.

. DANIEL T. nox, or MOUNT PLAsANT, PENNSYLVANIA.

LAM P-Bu RN ER.

SPECIFIGATION forming part of Letters Patent No. 534,870, dated February26, 1895.

Application filed May 16, 1894:.

`To @ZZ whom it may aaneen/u Be it known thatLDANIEL T. FOX, residing atMount Pleasant, in the county of West` I noreland and State ofPennsylvania, have invented a new and useful Improvement in LampBurners,"of which the following is a specification.

My invention is an improvement in lamp burners and particularly in thatclass of such position and to lock or sustain it in such position and tothis end the invention consists in a burner having base and top sectionand provided with a combined lifter and prop by which the top sectionmay be lifted to and locked in its elevated position.

The invention consists further in certain features of construction andnovel combinations of parts as will be hereinafter described and pointedout in the claims.

In the drawings--Figure 1 is a side view of a burner provided with myimprovements, the top being lifted. Fig. 2 is an elevation at rightangles to that shown in Fig. Land Fig.

' 3 is a detail view illustrating the jointing of the lever sectionstogether and to the top section. Figs. 4 and 5 illustrate theapplication of the improvements to a different form of burner and in asomewhat different manner from that shown in Figs. 1 and 2.

Referring now to the constructions shown in Figs. 1,2 and 3, the-basesection A and the top section B may be of any desired construction orpattern, the base A being adapted for connection with the lamp body andthe top B to receive the chimney. The top B is provided with dependingrods C which slide in upright guides D inthe base section so that thetop section may be slid up or down with respect to the base andpreserved throughout its movements in alignment with such base as isdesired. Manifestly the construction of these devices for guiding thenpper section and permitting its movement may Serial No. 511,430. (Nomodel.)

` be varied without departing from my inven tion. i

It is `obviously of importance to furnish means whereby the uppersection may be readily adjusted to and maintained iu its elevatedposition so that it will not accidentally drop during the operation oflighting or eX- tinguishing the lamp, and to this end I provide what Iterm a combined lifter .and prop connected with the base and uppeilsection and so constructed that it serves the double `purpose of liftingand locking the top section elevated.

In the construction shown I employ alever E, which is jointed or pivotedat F to the base A and is formed with a section G which is pivoted atone end to the upper section of the burner and at its other end to themain portion of the lever so that when such lever is operated to throwthe top section toits highest position the jointed section will be soset with relation to the main portion of the lever as to lock the uppersection in its highest position. At the same time the lever may `operateto lower the top section as will be readily understood.

As shown in Figs. 1 to 3 the jointed section G is pivoted in a keeper atthe outer side or edge of the burner top and the Wall of said keeper Hat h binds against the jointed section G when the top section is locked,but manifestly this maybe varied, a different arrangement being shown inFigs. 4 and 5 in which the jointed section is pivoted at the inner sideof the top section and such section abuts a shoulder formed by bendingthe main portion of the lever laterally at I. In both theseconstructions the operation of the lifter and prop is substantially thesame.. It will also be seen that in both such constructions I form thelever double-armed and employ two jointed sections for connecting suchlever with the burner top.

When the sliding section has been lifted to its uppermost position thejoint between the parts F and G is `thrown into or above a line drawnbetween the pivot of part G to the sliding section and F to the lowersection when the weight of the upper section and the chimney appliedthereto cannot bow the parts inward and downward but will bow themoutward and upward so that they operate to lock IOO or prop the slidingsection in elevated position. In such elevated position it Will be seenthat the slide rods form one side of a triangle, the base sectionanother side and the jointed prop the third.

While I prefer to employ the jointed construction of lever shown anddescribed it is manifest that I do not desire in the broad features ofmy improvement to be restricted thereto, as different forms of lever maybe employed to lift the burner top as Well as to lift and lock itwithout departing from my invention.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. The improved lamp burner herein described comprising the base section.the upper sliding section provided with keepers, the lever pivoted tothe base section and thejointed sections pivoted at one end to the armsof the lever and having their other ends projected Within the keepers ofthe sliding section and pivotally connected with said section, suchjointed sections being arranged to abut the keepers When the prop isbowed outward, all substantially as and for the purposes set forth.

2. In a lamp burner the combination of the base section the top sectionthe rods fixed to one section and sliding in guides upon the othersection, such rods forming one side of a triangle and the base sectionforming another side, the prop constituting the other side of the'triangle and formed in sections jointed together and to the base andsliding sections and abutments for engagement by said prop in theelevated position of the sliding section all substantially as and forthe purposes set forth.

3. In a lamp burner the combination of the base section the slidingsection, the slide rods the jointed sectional prop and the abutments forengagement by said prop in the elevated position of the slide sectionsubstantially as and for the purposes set forth.

DANIEL T. FOX.

Witnesses:

J AMES H. GRIDLEY, SoLoN C. KEMoN.

